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<!--
https://bugzilla.mozilla.org/show_bug.cgi?id=856472
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<head>
  <title>Test for Bug 856472</title>
  <script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
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<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=856472">Mozilla Bug 856472</a>
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<pre id="test">
<script>
/** Test for Bug 856472 **/

var c = document.createElement("canvas");

var ctx = c.getContext("2d");
var pattern = ctx.createPattern(c, null);
pattern.x = 1;
ctx.fillStyle = pattern;
is(ctx.fillStyle.x, 1, "CanvasPattern stored as fillstyle drops expandos");
</script>
</pre>
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